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Ethanol cause fuel injector problems. Since the introduction of Ethanol, the problems with gasoline are slightly different, but nevertheless just as alarming. Ethanol is very hygroscopic and will absorb moisture from the atmosphere directly into the fuel molecules. Water found in gasoline sinks to the bottom of the tank.
Ethanol is created when crops such as sugar-cane, maize, sorghum, wheat and other grains, or even cornstalks, fruit and vegetable waste is fermented and distilled. Ethanol blends dramatically reduce emissions of hydrocarbons.
Here are some of the comments we’ve found online regarding ethanol in the fuel supply of internal combustion engines. The evidence is undeniable, ethanol is not good for engines but great for the business of reconditioning fuel injectors.
“Ethanol is a solvent that attracts water. These two properties can lead to clogged filters, inadequate lubrication in two-strokes and low octane conditions that can damage engines.”
. . . “Ethanol has been linked to the weakening of fiberglass gas tanks, as well as clogged fuel filters and carburetors. E10 has a shorter shelf-life than gasoline and also attracts water, causing yet another set of problems. But most alarming is the deterioration of certain gas tanks.” . . .
“The resin released by ethanol makes its way through the fuel system where it sticks to valves and other internal engine parts. The buildup of this sticky black substance has bent pushrods, clogged intake valves and ruined some engines. Affected engines may run rough, stall or bog down under load.” . . .
With the introduction of Ethanol in our gasoline came a boat load of problems so speak. The affects of Ethanol was never properly tested before its introduction thus leaving many in various industries to foot an ongoing, unnecessary and most of the time very expensive bill. Even some aircraft using automotive based gasoline was affected.
For both retailer and end user, this is a very serious problem, but more so for the end user because it is the end user that most of the time has to foot the bill for expensive fuel system and engine related repairs.
When gasoline containing Ethanol comes in contact with water, either liquid or in the form of humidity; the Ethanol will pick-up and absorb some or all of that water. When it reaches a saturation point the Ethanol and water will Phase Separate.
Phase separation is when the water content in the fuel tank builds up to a level where separation of the ethanol and gasoline takes place. Reports have suggested that a fuel tank content of just 0.35% of water will lead to phase separation.
What you are left with then is a layer of water on the bottom of the tank, above it will be the layer of ethanol and above that will be the remainder of the unleaded gasoline. This fuel is deemed useless and corrosive, and if used will cause havoc in fuel injection systems. Clogged and especial sticky fuel injectors is but some of the related problems.
No where is this more prevalent than in the marine industry where thousands of dollars are spent to rebuild engines and replace fuel related components such as fuel pumps and fuel injectors.
It is therefore a good idea to manage fuel as closely as possible. Try to ensure that fuel tanks are empty when the boat, Jet Ski or related water based gasoline engine driven equipment are stored for periods of time. This is also true for some aircraft, especially those using automotive gasoline blends.
Boat U.S. Magazine July 2006
“Employees at the shop regularly rebuilt carburetors gummed up from the so-called “varnish” that builds up from unstabilized gas left sitting in engines. But since ethanol started being added to fuel sold in Florida in 2007, the power equipment pros were seeing something new: metal parts crusted up, plastic parts stiffened and cracked, and everything rubber, including the tips of needle valves, deteriorated.”
Consumer Reports.org June 24, 2009
Los Angeles, April, 2008 “A class action lawsuit charges that major oil companies are manufacturing and selling ethanol blended gasoline that damages marine fuel tanks, engines and other components.
“The price of gas is bad enough, but selling gasoline that dissolves gas tanks is a new low even for the oil companies,” said Brian Kabateck, the lead attorney on the case. “The oil companies know this fuel is corrosive, but they’re keeping consumers in the dark to pump up their profits. The cost to the consumer is thousands of dollars in repairs.”
Maintenance such as injector cleaning and flow testing should be done on a regular bases.
Using gasoline as a fleet operator or for your family car, classic car, boat, personal water-craft, motorcycle, ATV, RV, lawnmower, weed-whacker, generator, or any of the thousands of other types of equipment that use gasoline engines; you are being affected by Bio-Ethanol in your fuel.